space

163 posts
A daily high-resolution image of Earth

Planet monitors Earth with hundreds of satellites, and after six years, they’ve built out their pipeline to piece together a full image on the daily. At Planet, we’ve been pursuing Mission 1: to image the entire Earth’s landmass every day. I couldn’t be more excited to announce that we have achieved our founding mission. Six years ago, our team started in a garage in Cupertino. Mission 1 was the north...

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Tour of Saturn through Cassini, the satellite that crashes on Friday

About two decades ago, the Cassini satellite headed towards Saturn and has been orbiting the planet for 13 years. The satellite is scheduled to crash into Saturn’s atmosphere on Friday so Nadia Drake and Brian T. Jacobs for National Geographic toured through the satellite’s best finds. This is quite the scroller and feels pretty grand. No matter how many times it happens, it still blows my mind that satellites are...

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Solar System in a bottle

From Little Planet Factory, a Solar System in a bottle made to scale: A small bottle attempting to maintain the correct scale between the 8 planets of the solar system at a scale of 1:5,000,000,000. Much as in reality the entire bottle is almost entirely dominated by the volume (and mass) of the four gas giants while the four solid planets settle almost dust like in comparison at the bottom...

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New images of Earth at night

NASA just released a composite map of the world at night using satellite imagery from 2016. This is the first nighttime map since 2012, but the team behind the work hopes for bigger things with a more real-time system. For instance, daily nighttime imagery could be used to help monitor unregulated or unreported fishing. It could also contribute to efforts to track sea ice movements and concentrations. Researchers in Puerto...

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All major meteor showers, as seen from space

There are a lot of meteoroids circling around in space. Ian Webster visualized all of the major ones at once. Meteor showers on Earth are caused by streams of meteoroids hitting our atmosphere. These meteoroids are sand- and pebble-sized bits of rock that were once released from their parent comet. Some comets are no longer active and are now called asteroids. This visualization shows these meteoroid streams orbiting the Sun,...

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Explore the stars with this interactive Star Mapper

Jan Willem Tulp, in collaboration with the European Space Agency, produced the ESA Star Mapper. It shows nearly 60,000 stars in a combination of different scales and projections. Be sure to switch to “explore” mode and click on the play button to see a prediction for how the stars will move over many years. [Thanks, Jan] Tags: Jan Willem Tulp, space

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One-year time-lapse of Earth

x Time-lapse from space by NASA: On July 20, 2015, NASA released to the world the first image of the sunlit side of Earth captured by the space agency’s EPIC camera on NOAA’s DSCOVR satellite. The camera has now recorded a full year of life on Earth from its orbit at Lagrange point 1, approximately 1 million miles from Earth, where it is balanced between the gravity of our home...

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Interconnectedness of the galaxies

A group of researchers are studying how all the galaxies in the universe are connected, network-style. The concept of the cosmic web—viewing the universe as a set of discrete galaxies held together by gravity—is deeply ingrained in cosmology. Yet, little is known about architecture of this network or its characteristics. Our research used data from 24,000 galaxies to construct multiple models of the cosmic web, offering complex blueprints for how...

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All known planets outside our solar system

Jan Willem Tulp, in collaboration with Visualized, shows all known exoplanets (currently 1,942 of them) and then filters down to the ones that are habitable. Astrobiology uses the Goldilocks principle in the argument that a planet must neither be too far away from, nor too close to a star to support life; either extreme would result in a planet incapable of supporting life. Such a planet is colloquially called a...

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Tour of a million stars

The Online Star Register takes you through a delightful view of a million stars. You can browse and gaze the sky, but be sure to "take a tour" via the button on the top. It starts on the ground at Earth, beams you out far out and then back again. Tags: stars, space

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